Contec Americas Inc. / Counter
CNT24-4D(PCI)H 4Ch 24Bit Up/Down Counter Board for Difference Input for PCI
Contact Sales Department for Pricing New CNT24-4D(PCI)H 4 Counter Channels 24-bit Up/Down Differential / TTL Input 1 MHz Input Count Match Output VCCI-A · FCC-A · CE · UKCAPCI 4‑channel 24‑bit up/down counter board with differential line receiver...
Read full descriptionHide description
PCI 4‑channel 24‑bit up/down counter board with differential line receiver or TTL input selection per channel. Counts 2‑phase (rotary encoder) or single‑phase signals. Count match interrupt and one‑shot output. Programmable timer for periodic interrupts.
4‑Channel 24‑Bit
Differential Up/Down Counter
The CNT24‑4D(PCI)H provides four 24‑bit up/down counter channels on a PCI board. It supports differential line receiver or TTL‑level input selection per channel. Counts 2‑phase (quadrature) or single‑phase signals from rotary encoders, linear scales, and other pulse sources.
- 4 independent 24‑bit counters
- Differential or TTL input (software select)
- 1 MHz max input frequency
- 2‑phase or single‑phase counting
- General‑purpose input per channel
- Count match interrupt (per channel)
- One‑shot match output (selectable OC/TTL)
- Programmable timer (1 ms – 200 sec)
- Digital filter per channel
- PCI Universal key (requires +5V)
Flexible input selection — each channel can be independently configured for differential or TTL‑level input via software. Count match events can generate interrupts and/or output pulses.
Built for Precision Counting
-
Flexible input — differential (1 MHz, up to 1200m) or TTL (1 MHz) input per channel; software selectable.
-
Count match — generate interrupt and/or one‑shot output when count matches preset value.
-
Programmable timer — 1 ms to 200 sec for periodic interrupt generation.
-
Digital filter — programmable per channel (0.1 µsec to 1056.1 µsec) to reject noise.
-
General‑purpose input — one per channel (differential and TTL‑level).
-
Universal key PCI — compatible with 3.3V and 5V slots (requires +5V supply).
Full Specifications
| Item | Specification |
|---|---|
| Model | CNT24‑4D(PCI)H |
| Counter channels | 4 |
| Count system | Up/down counting |
| Max count | FFFFF (24‑bit binary) |
| Input type | Differential or TTL‑level (software selectable per channel) |
| Input signals | Phase‑A/UP ×4, Phase‑B/DOWN ×4, Phase‑Z/CLR ×4, General‑purpose input ×4 |
| Input response frequency | 1 MHz max (50% duty) |
| Differential input distance | 1200 m max (dependent on environment) |
| TTL input distance | 1.5 m max |
| Digital filter | 0.1 µsec – 1056.1 µsec (independent per channel) |
| Timer | 1 msec – 200 sec |
| Match signal output | 1 per channel, selectable open‑collector (50V 90mA) or TTL |
| Bus interface | 32‑bit, 33 MHz PCI (Universal key, requires +5V) |
| Power consumption | 5 VDC, 320 mA max (varies by board number) |
| Connector | 96‑pin half‑pitch |
| Dimensions (L × H) | 121.69 × 105.68 mm (varies by board number) |
| Weight | 120 g |
| Operating temperature | 0‑50°C |
| Operating humidity | 10‑90% RH (no condensation) |
| Certifications | VCCI Class A, CE (EMC Class A, RoHS), UKCA |
Connector & Cabling
The board uses a 96‑pin half‑pitch connector (CN1). Signals include differential/TTL phase inputs, general‑purpose inputs, one‑shot outputs, ground, and NC. Termination resistors can be enabled/disabled via switches.
-
Differential inputs — line receiver inputs with 100Ω termination (switchable), ±200mV sensitivity, ±7V common‑mode range.
-
TTL inputs — standard TTL‑level inputs, 1.5m cable length max.
-
One‑shot outputs — selectable open‑collector (50V, 90mA) or TTL via SW2.
-
Optional cables — shielded/flat 96‑pin half‑pitch cables (PCB69PS, PCB69P), distribution cables to 37‑pin D‑SUB (PCB69WS).
-
Terminal boards — EPD‑96A (M3 × 96), EPD‑96, EPD‑37A, EPD‑37, DTP‑64A, DTP‑3C, DTP‑4C; connector conversion board CCB‑96.
Certifications & Compliance
-
VCCI Class A — Japanese EMC for commercial/industrial environments.
-
FCC Class A — U.S. emissions compliance for industrial use.
-
CE (EMC Directive Class A + RoHS) — European conformity.
-
UKCA — UK conformity assessed.
Optional Accessories
| Part Number | Description |
|---|---|
| PCB69PS‑0.5P | Shielded cable, 96‑pin half‑pitch both ends, 0.5m |
| PCB69PS‑1.5P | Shielded cable, 96‑pin half‑pitch both ends, 1.5m |
| PCB69PS‑3P | Shielded cable, 96‑pin half‑pitch both ends, 3m |
| PCB69PS‑5P | Shielded cable, 96‑pin half‑pitch both ends, 5m |
| PCB69P‑1.5 | Flat cable, 96‑pin half‑pitch both ends, 1.5m |
| PCB69P‑3 | Flat cable, 96‑pin half‑pitch both ends, 3m |
| PCB69WS‑1.5P | Distribution shielded cable, 96‑pin to 37‑pin ×2, 1.5m |
| PCB69WS‑3P | Distribution shielded cable, 96‑pin to 37‑pin ×2, 3m |
| PCB69WS‑5P | Distribution shielded cable, 96‑pin to 37‑pin ×2, 5m |
| EPD‑96A | Screw terminal (M3 × 96, spring‑up) |
| EPD‑96 | Terminal unit for relay terminal banks |
| EPD‑37A | Screw terminal (M3 × 37P) |
| EPD‑37 | Screw terminal (M3.5 × 37P) |
| DTP‑64A | Screw terminal |
| DTP‑3C | General purpose terminal |
| DTP‑4C | Screw terminal |
| CCB‑96 | Connector conversion board (96‑pin to 37‑pin ×2) |
Software & Packing List
| Item | Description |
|---|---|
| Windows driver | API‑CNT(WDM) – Win32 API, samples (C#, VB.NET, VC++, Python), diagnostic tool |
| Linux driver | API‑CNT(LNX) – shared library, gcc (C/C++) and Python samples, config tool |
| SDK & support | Additional software tools available for download |
| Packing List | Product ×1, "Please read the following" document |
Ready to add high‑speed counting capability?
The CNT24‑4D(PCI)H is available through Contec Americas on a quote basis. Contact our sales team for volume pricing, cable assemblies, and integration support.
Taxes and shipping calculated at checkout.
Lead times may vary for products shipped from Japan:
Products sourced from Japan may take between 4 to 5 weeks to arrive. We will provide updated shipping timelines upon order confirmation.
Product resources